21076532341 has 4 divisors (see below), whose sum is σ = 21076872300. Its totient is φ = 21076192384.

The previous prime is 21076532339. The next prime is 21076532359. The reversal of 21076532341 is 14323567012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9539624241 + 11536908100 = 97671^2 + 107410^2 .

It is a cyclic number.

It is not a de Polignac number, because 21076532341 - 2¹ = 21076532339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21076532297 and 21076532306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21076532381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47626 + ... + 210763.

It is an arithmetic number, because the mean of its divisors is an integer number (5269218075).

Almost surely, 2^21076532341 is an apocalyptic number.

It is an amenable number.

21076532341 is a deficient number, since it is larger than the sum of its proper divisors (339959).

21076532341 is an equidigital number, since it uses as much as digits as its factorization.

21076532341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339958.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 21076532341 in words is "twenty-one billion, seventy-six million, five hundred thirty-two thousand, three hundred forty-one".